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Scale‐up in plug‐flow reactors: Laminar feed
Author(s) -
Forney L. J.,
Penney W. R.,
Vo Hanh X.
Publication year - 2001
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690470105
Subject(s) - laminar flow , reynolds number , plug flow reactor model , turbulence , mechanics , laminar flow reactor , mixing (physics) , plug flow , chemistry , flow (mathematics) , thermodynamics , scale up , continuous stirred tank reactor , materials science , physics , open channel flow , classical mechanics , quantum mechanics
Similarity parameters are derived to correlate the selectivity of mixing controlled paraliel reactions within plug‐flow reactors with two types of static mixing elements for both aqueous and viscous solutions. For the case of laminar reactor feed, the Kolmogoroff time is shown to correlate selectivity in turbulent reactors provided the reactor Reynolds number Re < Re C . The upper limit Re C for the reactor Reynolds number is constrained by the ratio of reactant feed‐to‐total volumetric flow rate. Moreover, for larger reactor Reynolds number Re > Re C , the inertial time scale defined in terms of a reactor feed length correlates selectivity. Scaling laws are derived for both reactor diameter and length, and suggestions are made for predicting selectivity with larger turbulent feed rates.